- #1
WalkingInMud
- 5
- 0
Any Ideas on how to Approach this one? ...
[tex]\int\sqrt{[1-sech(u)]^{2}+ [-tanh(u)sech(u)]^{2}}du[/tex]
We have a [tex]sech(u)[/tex] and its derivative [tex]-tanh(u)sech(u)[/tex] and this suggests some sort of substitution maybe, but the radical makes it a bit nasty for Me.
Any Ideas? ...Thanks Heaps,
[tex]\int\sqrt{[1-sech(u)]^{2}+ [-tanh(u)sech(u)]^{2}}du[/tex]
We have a [tex]sech(u)[/tex] and its derivative [tex]-tanh(u)sech(u)[/tex] and this suggests some sort of substitution maybe, but the radical makes it a bit nasty for Me.
Any Ideas? ...Thanks Heaps,